Is the law of conservation of matter followed in the reaction below? HELP!

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

14. many depressants reduce small muscle control, making it harder for a. you to steer b. your mind to consider complex problems c. the eye to scan, focus, or stay still d. the kidneys to filter alcohol out of the bloodstream